[importer] Tune CSV field delimiter detection
[importer] Fix CsvNormalizer spec
Provide default values for success key in import results hash
Fixes issue on redis initializer
Fixes redis initializer when no redis databases section on app_config
Merge branch 'hotfix/fix_redis_initializer_again'
Merge branch 'master' into develop

Conflicts:
	config/initializers/redis.rb